Julie,
why do you need a bypass acl ??
Bypass is usually needed when the destination ip/port could match a content rule and you don't want some hosts to hit the rule but instead simply forward the traffic ?
Do you have a content rule matching any traffic ??
This type of acl is usually being used for HTTP in a caching environment, so I really don't see why it would be required for SSH.
Regarding your next question, about how to reach the subnet behind the CSS, simply use common routing principles.
Think of the CSS as a router.
If you want to reach a segment attached to the CSS, you need to make sure the rest of your network knows about it.
I would not recommend using routing protocols on the CSS itself.
Instead, I would configure a static route on a next-hop device and propagate the route from there.
Regards,
Gilles.
Thanks for rating.